// http://www.bennadel.com/index.cfm?dax=blog:1504.view

// This will parse a delimited string into an array of
// arrays. The default delimiter is the comma, but this
// can be overriden in the second argument.
function CSVToArray( strData, strDelimiter ){
    // Check to see if the delimiter is defined. If not,
    // then default to comma.
    strDelimiter = (strDelimiter || ",");
 
    // Create a regular expression to parse the CSV values.
    var objPattern = new RegExp(
	(
	    // Delimiters.
	    "(\\" + strDelimiter + "|\\r?\\n|\\r|^)" +
		
	    // Quoted fields.
	    "(?:\"([^\"]*(?:\"\"[^\"]*)*)\"|" +
		
	    // Standard fields.
	    "([^\"\\" + strDelimiter + "\\r\\n]*))"
	),
	"gi"
    );
    
    
    // Create an array to hold our data. Give the array
    // a default empty first row.
    var arrData = [[]];
    
    // Create an array to hold our individual pattern
    // matching groups.
    var arrMatches = null;
    
    
    // Keep looping over the regular expression matches
    // until we can no longer find a match.
    while (arrMatches = objPattern.exec( strData )){
	
	// Get the delimiter that was found.
	var strMatchedDelimiter = arrMatches[ 1 ];
	
	// Check to see if the given delimiter has a length
	// (is not the start of string) and if it matches
	// field delimiter. If id does not, then we know
	// that this delimiter is a row delimiter.
	if (
	    strMatchedDelimiter.length &&
		(strMatchedDelimiter != strDelimiter)
	){
	    
	    // Since we have reached a new row of data,
	    // add an empty row to our data array.
	    arrData.push( [] );
	    
	}
	
	
	// Now that we have our delimiter out of the way,
	// let's check to see which kind of value we
	// captured (quoted or unquoted).
	if (arrMatches[ 2 ]){
	    
	    // We found a quoted value. When we capture
	    // this value, unescape any double quotes.
	    var strMatchedValue = arrMatches[ 2 ].replace(
		new RegExp( "\"\"", "g" ),
		"\""
	    );
	    
	} else {
	    
	    // We found a non-quoted value.
	    var strMatchedValue = arrMatches[ 3 ];
	    
	}
	
	
	// Now that we have our value string, let's add
	// it to the data array.
	arrData[ arrData.length - 1 ].push( strMatchedValue );
    }
    
    // Return the parsed data.
    return( arrData );
}
